01/06/2026
Why bonds are back in the spotlight – and why it matters
Bonds are back in the headlines, with political uncertainty driving fresh volatility in what is usually seen as a steadier part of the market. But why does this matter for investors? We answer some of the key questions.
Backdrop: When governments need to borrow money to fund expenses, they generally do so by issuing bonds. In the UK, government bonds are known as ‘gilts’. Each gilt will pay a regular amount of interest over the course of its life, which is called the coupon, with higher interest rates charged for bonds seen as ‘less safe’.
The amount an investor earns lending to the government on a 10-year gilt has risen sharply in recent months to 5%, a level not seen for years and a sign of investor unease. Likewise, the yield on a 30-year gilt is close to 6%, a level not seen since 1998.
Why are gilt yields rising?
Investors hate uncertainty, but the UK currently has it in bucket loads. The Labour party leadership contest is raising fears that the government’s already weak finances will be put under further strain should candidates promise to spend more in a bid to woo voters.
The Iran war is making things worse. Energy prices worldwide have risen sharply, and the UK is particularly vulnerable as it imports much of what it needs. This feeds through into higher costs for households and businesses. The result is that domestic inflation has risen notably. As well as uncertainty, bond investors hate inflation as it erodes their returns. As a result, they demand higher compensation to hold gilts, which means higher yields.
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Investors hate uncertainty, but the UK currently has it in bucket loads. The Labour party leadership contest is raising fears that the government’s already weak finances will be put under further strain should candidates promise to spend more in a bid to woo voters.